Symmetric NAT traversal for direct communication in P2P networks when some of the routing NATs are symmetric
US9497160B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2013 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Jul 16, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L61/255
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems, apparatuses and methods are described for facilitating connection between two or more clients across a network that includes network address translators (NATs). In a particular implementation, the techniques include peer-to-peer (P2P) traffic processing and network address translator (NAT) traversal. Low cost data traffic processing techniques with minimal server intervention are disclosed. The techniques can establish direct connections between clients located in private networks behind NATs. In the case where the clients are each behind a symmetric NAT, the connection can be established indirectly via a non-symmetric NAT (used as a relay) which establishes connection with both symmetric NATs using the disclosed direct connection techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.